133011457 has 8 divisors (see below), whose sum is σ = 142992000. Its totient is φ = 123328944.

The previous prime is 133011449. The next prime is 133011467. The reversal of 133011457 is 754110331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133011457 - 2³ = 133011449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133011467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73582 + ... + 75367.

It is an arithmetic number, because the mean of its divisors is an integer number (17874000).

Almost surely, 2^133011457 is an apocalyptic number.

It is an amenable number.

133011457 is a deficient number, since it is larger than the sum of its proper divisors (9980543).

133011457 is a wasteful number, since it uses less digits than its factorization.

133011457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149015.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 133011457 is about 11533.0593079200. The cubic root of 133011457 is about 510.4615288966.

Adding to 133011457 its reverse (754110331), we get a palindrome (887121788).

The spelling of 133011457 in words is "one hundred thirty-three million, eleven thousand, four hundred fifty-seven".